Device for releasably mounting a silencer and silencer arrangement

ABSTRACT

The present invention relates to a device for releasably mounting a silencer on a firearm, particularly a firearm tube or a firearm tube extension, such as a muzzle brake, comprising a coupling body with a firearm-sided fastening mechanism and a silencer-sided fastening mechanism, wherein at least one of the fastening mechanisms comprises a clamping and releasing slide movably mounted on the coupling body the clamping and releasing slide being movable between a clamping position, in which the clamping and releasing slide is in a form-locking, silencer-sided or firearm-sided clamping engagement, and a releasing position, in which the clamping and releasing slide releases the silencer-sided or firearm-sided clamping engagement for separation from the coupling body.

The invention relates to a device for releasably mounting a silencer ona firearm, particularly a firearm with a repeating mechanism, asemi-automatic or automatic firearm, a single-shot or multiloader or thelike. In particular the invention relates to a device for releasablymounting a silencer onto a muzzle brake for the firearm.

It is known to mount a silencer on the barrel or the firearm tube endwith a screw thread. Due to the high thermal and mechanical stressing ofthe silencer, the silencer fastener needs to fulfil high requirements.In particular when performing a salvo with only little time gaps betweenthe shots, high amounts of gas and temperature hot spots occur. However,screwed silencers have the problem of a complex assembly, as theassembly and disassembly of the silencer consumes time, which is oftennot available during fast operations.

Further, it is desired to not only be able to fasten the silencer on thebarrel or the firearm tube, rather in some cases a firearm tubeextension is provided at the firearm tube, such as a muzzle brake, onwhich the silencer is to be mounted.

It is an objective of the present invention to overcome thedisadvantages of the state of the art, in particular to provide areleasable silencer fastening or mounting device for a firearm with orwithout a muzzle brake, wherein simple usability when mounting anddisassembling the silencer on/from the firearm is necessary and wherehigh stress is to be withstood without having to generally change thebasic construction of the firearm or firearm extension.

This objective is solved by the features of claim 1. According to claim1, a device for releasably mounting a silencer on a firearm, inparticular a firearm tube or a firearm tube extension, such as a muzzlebrake, is provided. A silencer usually comprises cylindrical housingparts, which may serve to provide a connection to the mounting deviceaccording to the invention. The invention may ensure that all usual oralso future silencer constructions without special variations may bereleasably mounted at the basic structure of existing or futurefirearms. The releasable mounting device comprises a basic body orcoupling body, which is particularly produced and mounted separatelyfrom the silencer and the firearm, to which on the one hand the firearmand on the other hand the silencer may be connected or is connected. Thecoupling body is preferably provided hard and rigid such that thefirearm as well as the silencer may be supported or carried by thecoupling body. The separate coupling body has a firearm-sided fasteningmechanism and a silencer-sided fastening mechanism, wherein at least oneof the fastening mechanisms comprises a clamping and releasing slidemovably mounted on the coupling body. The releasing slide is mounted onthe coupling body such that it may be moved translationally between aclamping position, in which the clamping and releasing slide is broughtinto a form-locked clamping engagement, and a releasing position, inparticular reciprocatingly. In the release position, the clamping andreleasing slide releases the silencer-sided or firearm-sided clampingengagement in order to separate the firearm or silencer from thecoupling body. The fastening mechanism for the releasable mountingdevice ensures that even an untrained user may easily and securely mounta silencer on a firearm and release it from the firearm without anydisadvantages with regard to the arresting of the silencer on thefirearm. In particular, providing the basis or coupling bodytherebetween serves to provide a thermal and mechanical dampening orbuffering barrier between the firearm and the silencer. Thetranslationally movable releasing slide assures the easy usability andon the other hand a secure arresting of the silencer. Preferably, thetranslational moving direction is arranged perpendicular with regard tothe axial or shooting direction which is defined by the firearm and/orthe silencer.

In a preferred embodiment according to the invention, the coupling bodymovably holds the clamping and releasing slide such that the clampingand releasing slide in the course of its movement amplitude between theclamping position and the releasing position is forced and guided in asingle radial direction. Alternatively or additionally, the couplingbody at least partially defines a plain bearing in which the clampingand releasing slide is linearly guided in the radial direction and/orwhich comprises sliding surfaces extending parallel to each other in theradial moving direction, which preferably cooperate with plain bearingsurfaces being at the clamping and releasing slide by forming a mountingby plain bearing clearance fit or plain bearing transition fit. Theplain bearing shall prevent rotation or movement of the coupling body inthe axial direction.

According to a further development of the invention, the clamping andreleasing slide is spring loaded. Additionally or alternatively, thepreferably firearm-sided fastening mechanism of the releasable mountingdevice can comprise at least one spring or a biasing spring, preferablya spring pair. Preferably, the spring biasing to be applied to theclamping and releasing slide and/or the at least one spring isconfigured or dimensioned such that the clamping or releasing side isforced in particular in a manually inactive state into the clampingposition. In the inactive state, the clamping and releasing slideconclusively maintains in the clamping position and arrests the couplingbody at the silencer or the firearm. In the releasing position, theclamping and releasing slide does not maintain by its own.

According to a preferred embodiment of the invention, the coupling bodyis formed as a connection muffle in particular with a preferablycircular or rotational symmetric sleeve shape, in which a plain bearingextending radially through the muffle wall for receiving the clampingand releasing slide is introduced. The coupling body is dimensioned toencompass the silencer or the firing arm at their clamping position.Also, the clamping and releasing slide has at least two grasping armsextending laterally past the silencer or the firearm, which graspingarms may also be end-sidedly coupled to each other to build a ringstructure. Thus, at the clamping position, the plain bearings as well asthe clamping and releasing slide are dimensioned so large that thesilencer or the firearm may be encompassed. In particular, in case of asymmetric plain bearing introduction and a clamping and releasing slideshape adapted thereto a protrusion-recess-arrangement at the couplingbody and the clamping and releasing slide is provided such that only oneinsertion mounting position for the clamping and releasing slide intothe plain bearing is allowed.

In a preferred embodiment of the invention, the coupling body defines apreferably cylindrical axial passage which comprises a passage minimumcross-section. The axial passage is dimensioned such that axialinsertion of the firearm tube or the firearm tube extension inparticular only from one side is allowed. Further, the clamping andreleasing slide which preferably forms a closed ring shape defines aparticularly non-cylindrical axial aperture which defines an apertureminimum cross-section. The aperture minimum cross-section of the axialaperture is dimensioned such that in the releasing position of theclamping and releasing slide no radial overlapping or cross-over isprovided by the structure of the clamping and releasing slide withregard to the passage minimum cross-section. In this releasing position,the non-overlapping alignment or lying on top of each other of bothpassage cross-sections allows an unhindered feeding through of thefirearm tube or the firearm tube extension or the connection part of thesilencer through the axial passage as well as through the axialaperture. Further, the aperture minimum cross-section of the axialaperture is aligned with regard to the axial passage such that in theclamping position of the clamping and releasing slide, a radialoverlapping or cross-over with regard to the passage minimumcross-section of the axial passages provided. The radial overlapping orthe radial cross-over may in particular be formed by a clamping sectionof the particularly ring-shaped clamping and releasing slide, whichclamping section is preferably arranged diametrically opposite withregard to an actuation section of the clamping and releasing slide withregard to its moving direction. Additionally or alternatively, the ringsection of the clamping and releasing slide engages a clamping countersection of the firearm tube or the firearm tube extension.

In a further development of the invention, the at least one fasteningmechanism of the releasable mounting device according to the inventionis able to apply a radial clamping force, in particular by means of astored mechanical preload in a single radial direction, on the clampingand releasing slide. The clamping and releasing slide is particularlyconfigured such that in the clamping position, part of the radialclamping force for radially tensioning of the clamping and releasingslide is deflected such that the releasing slide may also apply axialclamping forces to the firearm tube or the silencer.

The clamping and releasing slide preferably has a ring-section-shapedclamping section which is preferably arranged diametrically oppositewith regard to an actuation section of the clamping and releasing slidewith regard to its moving direction and/or defines a clamping surfacewhich is inclined with regard to the axial direction. The clampingsurface of the clamping section of the clamping and releasing slide iscurved in a circumferential direction, in particular is partiallycircumferential frustum-shaped, wherein a clamping counter surface atthe firearm tube or the firearm tube extension or the silencer is shapedcomplementary in shape for an arresting clamping engagement.

In a preferred embodiment of the invention, the form-locked clampingengagement between the clamping and releasing slide and the silencer orthe firearm, in particular the firearm tube or the firearm tubeextension, is formed via ring-section-shaped clamping surfaces beinginclined with regard to the axial direction. Due to the radial springbiasing and the radial guidance of the clamping and releasing slide in asingle radial direction, an axial clamping or arresting of the couplingbody with regard to the silencer or the firearm is provided.

In a preferred embodiment of the invention, the further firearm-sided orsilencer-sided fastening device is realized either via theabove-mentioned fastening mechanism according to the invention or viascrewing, via a usual bayonet lock or is formed by one piece with theadjacent component.

In a preferred further development of the invention the clamping andreleasing slide has a preferably closed ring structure in order tocompletely encompass the component to be coupled thereto, such as thefirearm, preferably the firearm tube or the firearm tube extension, orthe silencer. The ring-shaped clamping and releasing slide comprises aclamping section, which is preferably positioned diametrically withregard to an actuation section with regard to the moving direction ofthe clamping and releasing slide, and two outer notches introduced inthe ring outer surface for preferably movably receiving two coilsprings. The springs may be formed by any spring element, preferablycoil springs are to be used. The springs may be supported with one endat a front face of the outer notches and with the other end at a plainbearing wall of the coupling body. The springs serve to linearly biasthe clamping and releasing slide in the moving direction such that theactuation section of the clamping and releasing slide is forced radiallyoutwardly. In particular, in the clamping position of the clamping andreleasing slide its actuation section slightly protrudes, preferablybetween 0.5 mm to 2 mm, 5 mm or 10 mm, an outer surface of the couplingbody such that upon manually two-dimensionally impressing, the clampingand releasing slide may be moved translationally against the springpressure, wherein thereby a clamping engagement between the clampingsection of the clamping and releasing slide and a clamping countersection of the silencer or the firearm is released.

Further, the invention relates to a silencer arrangement with a silencerand a releasable mounting device according to the invention, which iscoupled to the silencer by means of the fastening mechanism according tothe invention or any usual fastening mechanism. This silencerarrangement may, for example, be releasably mounted on a firearm, suchas a firearm tube or a firearm tube extension, in particular a muzzlebrake, by using firearm-sidedly the fastening mechanism according to theinvention.

Further, the invention relates to a silencer arrangement with a silencerwhich comprises a coupling body as described with regard to the mountingdevice according to the invention. Also, the silencer arrangement maycomprise a mounting device according to the invention in order to allowa releasable mounting and releasing of the silencer from the mountingdevice.

It shall be clear that the coupling body, namely the mounting device,may also be provided either firearm-sided or silencer-sided and may beformed by one piece with the basic body, in particular the barrel of thefirearm or the housing of the silencer.

Further preferred embodiments are given by the dependent claims.

Further characteristics, advantages and features of the invention willbecome apparent in the following description of preferred embodiments bymeans of the accompanying drawings, in which:

FIG. 1 shows a perspective view of the silencer arrangement according tothe invention with a muzzle brake, a silencer and a mounting deviceaccording to the invention;

FIG. 2 shows a side view of the silencer arrangement according to FIG.1;

FIG. 3 shows a cross-section view along the line III according to FIG.2;

FIG. 4 shows a cross-section view along the line IV according to FIG. 3;

FIG. 5 shows a detailed cross-section view V according to FIG. 3,

FIGS. 6a and 6b show a side view and a cross-section view of themounting device according to the invention before the assembly on themuzzle brake of the corresponding FIGS. 6a and 6 b;

FIGS. 7a and 7b show a side view and a cross-section view of themounting device according to the invention without a silencer, themounting device being fixedly attached to a muzzle brake;

FIG. 8 shows an exploded cross-section view of the silencer arrangementaccording to the invention according to FIGS. 1 and 2;

FIG. 9 shows a perspective cross-section view of the silencerarrangement in the assembly stage; and

FIG. 10 shows a further cross-section view with a cross-section planebeing rotated about 90° with regard to the cross-section plane accordingto FIG. 9.

In FIG. 1 a silencer arrangement according to the invention is ingeneral indicated with the reference numeral 1 and comprises thefollowing main components: a silencer 3, a muzzle brake 5 to be mountedon a shaft of a firearm not shown in detail, and a mounting device 7according to the invention, with which the silencer 3 may be releasablyattached on the firearm by completely receiving the muzzle brake 5,wherein in a clamping state a complete vibration-free and clearance-freeattachment of the silencer 3 on the muzzle brake 5 is realized.

The mounting device 7 has two fastening mechanisms, namely asilencer-sided connection or attachment and a firearm-sided(muzzle-break-sided) connection or attachment 9. In the case which isshown in the figures the mounting device 7 comprises the fasteningmechanism according to the invention at the muzzle-break-sidedconnection 9. That is defined more clearly in the figures. It shall beclear that also firearm-sided a fastening mechanism according to theinvention may be provided. Further, it shall be clear that one of thefastening mechanisms may also be configured as an alternative connectionor attachment, which may, for example, be formed by one piece, realizedby means of screwing or a bayonet lock. The further fastening mechanismdoes not necessarily have to be releasable, rather may also beinseparably coupled with the silencer 3 or the firearm. The mountingdevice 7 according to the invention shall assure a damage-freeseparation of the silencer 3 from the firearm. Preferably, the mountingdevice 7 shall be releasable from the silencer 3 as well as from themuzzle brake 5. In this case, both fastening mechanisms may be realizedby the attachment or connection 9 according to the invention.

The silencer-sided mounting device 7 is shown in detail in FIGS. 5 to 10where the silencer-sided connection is realized by a screwing 10 of acoupling body 11 of the releasable mounting device 7 with an inner tube13 of a silencer 3. The coupling body 11 comprises essentially a sleeveshape with an axial passage 15 which is formed cylindrically and whichdefines a passage minimum cross-section Q₁ whose diameter is slightlysmaller than the maximum diameter of the muzzle of the muzzle brake 5 inparticular at its firearm-sided end 17 such that the muzzle brake 5 maybe mounted or inserted from its end 17 in an axial direction A (seeFIGS. 6b, 7b ). In the cross-section of the coupling body 11 the latterhas a U-shape on the inner side which limits an inner recess 15 whichessentially is circumferential and in which a clamping slide 16 ismovably guided. The coupling body 11 may be formed out of a metalwherein further heat-proof and pressure-resistant materials, such asfiber-reinforced plastics, or the like, may be used. Silencer-sided thecoupling body 11 comprises a cylindrical circumferential fasteningextension 19, at which inner side a thread for the screwing 10 of thecoupling body 11 on the inner tube 13 of the silencer 3 is formed, whichinner tube comprises a corresponding outer thread (FIG. 5). Afirearm-sided end 21 of the muzzle brake 5 comprises an outer diameter10 which is slightly smaller than the firearm-sided end 17 of the muzzlebrake 5 and smaller than the diameter of the axial passage 15 at itssmallest cross-section area such that the coupling body 11 may only bemounted from one side, namely from the end 21 of the muzzle brake 5.

The conventional muzzle brake 5 has, at the section facing the firearmbeyond of muzzle brake openings 23, a ring-section-shaped clampingcounter section 25 which defines a surface 27 being inclined with regardto the axial direction A, which surface 27 shall cooperate arrestinglywith a corresponding clamping surface 41 of the clamping slide 16, aswill be described later. The inclined ring-section-shaped clampingcounter section 25 comprises an angle of slope α with regard to theaxial direction of between 20° and 70°, preferably smaller than 60°, inparticular between 30° and 50°. The ring-section-shaped outer surface ofthe clamping opposite section does not extend circumferentially, as maybe seen when comparing FIGS. 6a and 6b , rather, is interrupted toprovide a guiding track, which according to FIG. 6a in connection withFIG. 7b serves to guide the clamping slide 16 in the moving direction V,which is perpendicular with regard to the paper plane in FIG. 6a . Theguiding track is limited by an offset structure which determines alateral guiding in a radial direction (moving direction V).

The clamping slide 16 may be moved via the guiding track 29 between twoextreme positions in a translational moving direction V, namely aclamping position, which is shown in more detail in FIG. 7b , and areleasing position, which is shown in FIG. 6b , wherefore the clampingslide 16 is also referred to as a clamping and releasing slide.

The clamping and releasing slide 16 is shown in detail in FIG. 8. Theclamping and releasing slide 16 comprises a ring structure with areinforced, on the outside earlier flattened crest with regard to therounding of the outer side of the coupling body 11, the crest serving asa manual actuation section 33. The actuation section 33 has acorrugation at its outer surface. At the actuation section 33 a pin 35extending in the axial direction is provided which protrudes at an axialside of the clamping slide 16 and which may engage into a recess 37 ofthe muzzle brake 5, the recess 37 being configured as a radial offsetand arranged only at one axial side adjacent with regard to the clampingand releasing slide 16, in order to only provide a single insertionoption for the axially symmetrical clamping and releasing slide 16. Thepin 35 is also configured as an alignment pin or dowel pin and isfixedly inserted into a corresponding hole in the crest 33 of theclamping and releasing slide 16. The pin 15 serves as a radial stop forthe limitation of the movement amplitude of the clamping and releasingslide upwardly in the moving direction V, away from the coupling body.The pin 35 abuts the inner side of the outer tube 36 of the silencer 3in a path-limiting way, which is particularly shown in FIGS. 9 and 10.

In a correct inserting position a clamping ring section 39 of theclamping end releasing slide 16, which is arranged diametricallyopposite with regard to an actuation section 33, lies on the clampingsurfaces 27, 41, which comprise the same angle of slope α, as it isclearly indicated in the mounted clamping position of the mountingdevice 7 in FIG. 6 b.

As it is shown in FIG. 8, the coupling body 11 comprises an access slit43 extending in the radial direction, via which the clamping andreleasing slide 16 may be translationally glidingly inserted into itsplain bearing which is laterally limited by the muzzle-break-sidedguiding track 29 and the coupling-body-sided recess 15. In the plainbearing the clamping and releasing slide 16 is guided such that it maybe inserted and may exit in the moving direction V wherein only aone-dimensional translational movement within the plain bearing isallowed.

The clamping and releasing slide 16 is spring-biased in the movingdirection V such the actuation section 33 is pushed radially outwards,wherein the clamping ring section 39 is pressed onto the muzzle brake 5,namely onto the clamping counter section 25 (see FIG. 6b ) in the samebiasing direction, whereby an arresting attachment of the coupling body11 on the muzzle brake 5 is achieved. When mounting the coupling body 11onto the muzzle brake 5 and when arriving at the clamping countersection the clamping ring section 39 of the clamping and releasing slidesnappingly engages the clamping counter section 25 due to the springbiasing. The position of the coupling body 11 of the clamping andreleasing slide is determined in the radial as well as in the axialdirection. The arresting in the circumferential direction is achieved bymeans of the rotational plain bearing shape and its clearance-freemanufacturing.

The spring biasing of the releasable mounting device 7 is provided by apair of coil springs 51, 53 which on the one hand are hold incorresponding outer notches 55 of the clamping and releasing slide 16and on the other hand in corresponding inner notches 57 in the couplingbody 11 in the area of the plain bearing. The coil springs 51, 53function as pressure springs, which realize the above-mentioned springbiasing. The spring biasing may also be achieved by other springelements in order to elaborate the desired preload onto the clamping andreleasing slide 16.

In the mounted state of the mounting device 7 (FIG. 6a and FIG. 6b ) thespring biasing and the circumferential ring structure for the clampingand releasing slide 16 elaborate that the actuation section 33 slightlyprotrudes the outer surface 61 of the coupling body 11 in order tomanually allow a movement amplitude of 0.5 mm to 2 mm for the clampingand releasing slide in a radial moving direction V upon a manualtwo-dimensional loading of the actuation section 33. In the clampingposition of the clamping and releasing slide 16 the clamping ringsection 39 lies on the clamping counter section 25, wherein the radiallyacting spring forces due to the axial inclination of the clampingsurfaces 27, 41 also receive an axial holding force. When the clampingand releasing slide 16 is manually radially impressed the clamping ring33 releases its clamping engagement with the clamping counter section 25and the clamping and releasing slide 16 is in the releasing position.Further, the clamping ring section 39 gets beyond an axial overlappingarea with the axial passage 15 such that an unhindered axial mountingand disassembling of the muzzle brake 5 through the axial passage 15 isallowed.

It shall be clear that, in case no muzzle brake at the weapon tube endmay be provided, the corresponding configuration of the weapon tube endmay be provided in accordance with the above described muzzle brake. Inparticular, the weapon tube shall comprise the clamping counter section25 as structure. Further, the guiding track 29 should be positioned atthe outer surface of the weapon tube.

In order to prevent that the coupling body 11 is pushed over anactuation corrugation of the muzzle brake, an axial stop 52 is arrangedas a separate component axially adjacent the muzzle brake corrugationwhich slightly radially protrudes to the outside such that the couplingbody 11 is blocked from being pushed over the muzzle brake. Preferably,the axial stop 52 is configured as a U-shaped ring or as a slit springsteel ring.

The clamping and releasing slide 16 has an axial aperture 67 with anaperture cross-section which is configured such that in the releasingposition of the clamping and releasing slide 16 the axial passage 15 ofthe coupling body 11 is overlapping-free and axially aligned or flush,while in the clamping position a rim limit of the axial apertureprovides a cross-section-overlapping with regard to the axial passage 15and is dimensioned such that a disassembly of the muzzle brake in theaxial direction A is locked. The axial passage 67 comprises an ovalshape differing from the cylindrical shape of the circular apertureminimum cross-section of the axial passage 15 in order to achieve aposition-dependent overlapping between the axial aperture 67 and theaxial passage 15 in the clamping position. In the releasing position noaxial overlapping exists between the axial aperture 67 and the axialpassage 15.

The releasable mounting device according to the invention provides anarresting of the silencer 3 on the firearm essentially without a screwthread. It shall be clear that a screw thread may be provided withregard to the attachment of the silencer housing at the mounting device7. The mounting device 7 on the other hand serves as a thermal buffer orcushion. The manually very easily operable fastening mechanism of themounting device 7 according to the invention achieves that untrainedusers may easily and fast attach the silencer 3 on the firearm, inparticular the muzzle brake 5, and disassemble therefrom.

The features disclosed in the preceding description, the figures and theclaims may individually as well as in any combination be relevant forthe realization of the invention in the different configurations.

LIST OF REFERENCE SIGNS

-   1 silencer arrangement-   3 silencer-   5 muzzle brake-   7 mounting device-   9 muzzle brake-sided fastening mechanism/connection-   10 screwing-   11 coupling body-   13 inner tube-   15 axial passage-   16 clamping and releasing slide-   17 muzzle brake end-   19 fastening extension-   21 firearm-sided end-   23 muzzle brake opening-   25 clamping counter section-   27 ring-section-shaped outer surface-   29 guiding track-   33 actuation section/crest-   35 pin-   36 outer tube-   37 recess-   39 clamping section-   41 clamping surface-   43 access slit-   51, 53 coil spring-   52 axial lock-   55 outer notch-   57 inner side-   59 end barrel-   61 outer surface-   67 axial aperture-   A axial direction-   V moving direction-   α angle of slope

1. A device for releasably mounting a silencer on a firearm,particularly a firearm tube or a firearm tube extension, such as amuzzle brake, comprising a coupling body with a firearm-sided fasteningmechanism and a silencer-sided fastening mechanism, wherein at least oneof the fastening mechanisms comprises a clamping and releasing slidemovably mounted on the coupling body, the clamping and releasing slidebeing movable between a clamping position, in which the clamping andreleasing slide is in a form-locking, silencer-sided or firearm-sidedclamping engagement, and a releasing position, in which the clamping andreleasing slide releases the silencer-sided or firearm-sided clampingengagement for separation from the coupling body.
 2. The deviceaccording to claim 1, wherein the coupling body movably holds theclamping and releasing slide such that the clamping and releasing slidein the course of its movement amplitude between the clamping positionand the releasing position is forced in a radial direction and/orcomprises a plain bearing, in which the clamping and releasing slide isguided, and/or which in the radial direction forms parallel extendingsliding surfaces which cooperate with particularly form-locking, plainbearing surfaces of the clamping and releasing slide, particularly byforming a mounting by plain bearing clearance fit or plain bearingtransition fit.
 3. The device according to claim 1, wherein the clampingand releasing slide is spring-loaded and/or the at least one fasteningmechanism comprises at least one spring, particularly a spring pair,wherein particularly the spring preload and/or the at least one springis configured such that the clamping and releasing slide in particularin the inactive state is forced into the clamping position.
 4. Thedevice according to claim 1, wherein the coupling body (11) is a muffleparticularly with a preferably circular or rotationally symmetric sleeveshape, in which a plain bearing for receiving the clamping and releasingslide extending radially through the muffle wall whose axial plainbearing width is particularly slightly bigger than the correspondingaxial width of the clamping and releasing slide, wherein particularly incase of a symmetric plain bearing introduction and a shape of theclamping and releasing slide adapted thereto aprotrusion-recess-arrangement on the coupling body and the clamping andreleasing slide is provided such that only one inserting mountingposition of the clamping and releasing slide into the plain bearing isallowed.
 5. The device according to claim 1, wherein the coupling bodycomprises a cylindric passage for axially inserting the firearm tube orthe firearm tube extension and the clamping and releasing slidecomprises an axial aperture, which defines an aperture minimum crosssection such that in the releasing position no radial overlapping by theclamping and releasing slide is provided with regard to a passageminimum cross section of an axial passage in order to unhinderedly feedthe firearm tube or firearm tube extension through the axial passage,and such that in the clamping position a radial overlapping is providedwith regard to the passage minimum cross section, which is particularlyformed by a clamping section of the clamping and releasing slide, whichpreferably is arranged diametrically opposite to an actuation section ofthe clamping and releasing slide with regard to its moving directionand/or engages a clamping counter section particularly beingcomplementary in shape with regard to the clamping section and thefirearm tube or the firearm tube extension.
 6. The device according toclaim 1, wherein the at least one fastening mechanism provides a radialclamping force, in particular by means of preload, in a radial directionat the clamping and releasing slide, which is particularly configuredsuch that in the clamping position part of the radial clamping force foraxially tensioning the clamping and releasing slide is deflected,wherein particularly the clamping and releasing slide defines a clampingsection, which particularly is arranged diametrically opposite withregard to an actuation section of the clamping and releasing slide withregard to its moving direction, and/or a clamping surface, which isinclined with regard to an axial direction, wherein particularly theclamping surface is curved in a circumferential direction, particularlyis configured partly cylindrical, wherein a clamping counter surface atthe firearm tube or firearm tube extension is configured complimentaryin shape for a clamping engagement.
 7. The device according to claim 6,wherein the form-locking clamping engagement between the clamping andreleasing slide and the silencer or the firearm is formed by ringsection surfaces being inclined with regard to the axial direction,wherein particularly due to a radial spring preload and the radialguidance of the clamping and releasing slide in its clamping position anaxial clamping of the coupling body with regard to the silencer or thefirearm is realized.
 8. The device according to claim 1, wherein theother of the at least one further firearm-sided or silencer-sidedfastening mechanism is realized by means of screwing, a bayonet lock oris formed by one piece.
 9. The device according to claim 1, wherein theclamping and releasing slide comprises a ring shape, where a clampingsection, which particularly is arranged diametrically with regard to anactuation section with regard to the moving direction of the clampingand releasing slide, and two outer notches for receiving two springs,introduced into the ring outer side, are provided, the two springs beingsupported preferably at one end at a face side of the outer notches andat an other end at a plain bearing wall of the coupling body in order tolinearly bias the clamping and releasing slide in the moving directionsuch that the actuation section is pushed radially outwards, whereinparticularly in the clamping position the actuation section of theclamping and releasing slide slightly protrudes, preferably between 0.5millimeters (mm) and 2 mm, with regard to an outer surface of thecoupling body such that when manually impressing the clamping andreleasing slide is translationally movable against the spring pressure,wherein a clamping engagement between the clamping section of theclamping and releasing slide and a clamping counter section of thesilencer or the firearm is released.
 10. A silencer arrangement with asilencer and the device configured according to claim 1 for releasablymounting the silencer on a firearm, in particular a firearm tube orfirearm tube extension, such as a muzzle brake.